Improvement in door-checks



C. H. OSBORN.

ECCE-CHECK. No.185,043( Patented Dec. 5, 1876.

16 4 MM I [mezziorfi UNITED STATES PATEN' OFFICE CHARLES H. OSBOR, OF GRIFFINS MILLS, NEW YORK.

IMPROVEMENT IN DOOR-CHECKS.

Specification formin g part of Lettore Patent N o. 185,043, dated December 5, 1876; applca.ton filed September 23, 1876.

To all whom it may concern:

Be in known that I, CHARLES HENRY Os- BORN, of Griffins Mills, in the county of Erie and Sta-te of New York, ha-ve made certain Improvements in Door-Fasteners, of Which the followiug is a specificatiou:

This inveuton relates tu thai; class of fasteners chat can be attached to the inside of a (1001 to hold in in plae wbeu closed or partly open, to prex*eut thieve's or others opening the door. by tampering Wibh the u sual look from the oubside.

The inveutiou oonsists in its general con-' struction, as hereinafter desoribed.

In the drawings, Figure 1 is an elva-tion, showing; the fasteuer in positon attached to the inside of a door, aud the poiut s penetrating the fioor. Fig'. 2 is also an elevation, showing the fasteuer wben rased, andwith the hook in place to hold it up clear of tbe floor..

A represents a section of a (1001, and B a cross-section of the flooring. 0 is che main pieceof Lhefastener, coustructed ot' metal, witzh two sharp points, a a, penetrating the floor. The upper portion is constructed With a long slot or opening, b, in which a pivot-pio, 0, with a head sets and fastens into the (1001. -This is the only attachment ot' che main .piece '00 the (1001. This slot gives a play up and down to this part of the whole fastening. On tahis pi 0 is pivoted m1 independent; piece, D, combining a. hook, d, ai; one end and an eccentric cam, e, at the obher. 'lhiseccentric presses on a shoulder or projectiou,f, formiug a part; of the main peoe 0, and just above tbe ponetrating-ponts a, a, aud al; right angles tbereto, aud after the poiuts are pressed iu'to the floor tbe eccentric 6 is forced on-to the shoulder f, which not ouly presses these po'iuts still farther into the floor, but; also holds them in imtil released by the swinging b-ack of the eccentric, and raisiug the whole piece 0 by band clear of the floor. This is dome when it is desired to open the-door or to keep it unlocked,

in which case the piec D is swung completenot be tampered With' from the outside, if I properly placed, and fastens the door other- Wheu ila is purtly open or shuty, as may be desired.

Tbe operaton of tbe device is smple, as follows: The (1001 being shut, the book 61 is swung oi' from che piu 9. The points a a Will tben descend 'nto tbe floor, and after being partly pressed in by baud tbe eccentric cam 9 is set; on the sboulderf, aud pushed far enough forward to set the pius well iato tbe floor, and lockiug them nhere uutil removed by some one insicle.

The slot b allows a considerable play either for the points or pins so penetrate the fl oor or to mise the piece 0 out of the way to fasteu it; up by che hook d.

It is simple, strong, cheap, and entirely practical.

I claim- The combination of the metal piece C, h'V- ing the points a a, che slot I), and shoulder a,nd pinfg, a nd t;he pieoe D, secured pennanently to the (1001 by piu 0, and having the book (1 at. oue end ami ecqeutrio cam an che other, a11 as and for the purpose hereinbefore specified.

In witness whereof I ha.ve hereunt0 signed my nanne in the presence of two subscribing witnesses.

OHARLES H. OSBORN. Witnesses:

J. R. DRAKE,

T. E. PARSONS. 

